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Goodwill and Intangible Assets | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2025 | Dec. 31, 2024
Goodwill and Intangible Assets Disclosure [Abstract] |  |
Goodwill and Intangible Assets | 6. Goodwill and Intangible Assets As of March 31, 2025 and December 31, 2024, the Company had recorded goodwill of $13.5 million. No goodwill impairment was recognized for the three months ended March 31, 2025 and 2024. Amortization of the intangible assets that have finite useful lives is generally recorded on a straight-line basis over their useful lives, with remaining useful lives ranging from 6.58 to 12.75 years. A summary of the Company’s identifiable intangible assets as of March 31, 2025 and December 31, 2024 is as follows (in thousands):
|  | March 31, 2025 |
|  | Gross Carrying Amount |  |  | Accumulated Amortization |  |  | Intangibles, net |
Patent rights |  | $ | 32,630 |  |  | $ | 18,314 |  |  | $ | 14,316 |
Acquired technology |  |  | 21,940 |  |  |  | 9,509 |  |  |  | 12,431 |
Acquired licenses |  |  | 5,711 |  |  |  | 1,007 |  |  |  | 4,704 |
Assembled workforce |  |  | 500 |  |  |  | 500 |  |  |  | — |
Total intangible assets |  | $ | 60,781 |  |  | $ | 29,330 |  |  | $ | 31,451 |
|  | December 31, 2024 |
|  | Gross Carrying Amount |  |  | Accumulated Amortization |  |  | Intangibles, net |
Patent rights |  | $ | 32,630 |  |  | $ | 17,770 |  |  | $ | 14,860 |
Acquired technology |  |  | 21,940 |  |  |  | 9,143 |  |  |  | 12,797 |
Acquired licenses |  |  | 5,711 |  |  |  | 915 |  |  |  | 4,796 |
Assembled workforce |  |  | 500 |  |  |  | 500 |  |  |  | — |
Total intangible assets |  | $ | 60,781 |  |  | $ | 28,328 |  |  | $ | 32,453 |
As of March 31, 2025, the weighted average remaining life for identifiable intangible assets was 8.3 years. Aggregate amortization expense was $1.0 million for each of the three months ended March 31, 2025 and 2024. Patent rights, acquired technology and acquired licenses are amortized over a 15-year period. Estimated future amortization expense related to intangible assets as of March 31, 2025 is as follows (in thousands):
|  | Amount |
2025 (Remainder of 2025) |  | $ | 3,004 |
2026 |  |  | 4,006 |
2027 |  |  | 4,006 |
2028 |  |  | 4,006 |
2029 |  |  | 4,006 |
Thereafter |  |  | 12,423 |
Total |  | $ | 31,451 |
| 6. Goodwill and Intangible Assets As of December 31, 2024 and 2023, the Company had recorded goodwill of $13.5 million. No goodwill impairment was recognized for the years ended December 31, 2024 and 2023. Amortization of the intangible assets that have finite useful lives is generally recorded on a straight-line basis over their useful lives, ranging from 6.8 to 13.0 years. A summary of the Company’s identifiable intangible assets as of December 31, 2024 and 2023 is as follows (in thousands):
|  | December 31, 2024 |
|  | Gross Carrying Amount |  |  | Accumulated Amortization |  |  | Intangibles, net |
Patent rights |  | $ | 32,630 |  |  | $ | 17,770 |  |  | $ | 14,860 |
Acquired technology |  |  | 21,940 |  |  |  | 9,143 |  |  |  | 12,797 |
Acquired licenses |  |  | 5,711 |  |  |  | 915 |  |  |  | 4,796 |
Assembled workforce |  |  | 500 |  |  |  | 500 |  |  |  | — |
Total intangible assets |  | $ | 60,781 |  |  | $ | 28,328 |  |  | $ | 32,453 |
As of December 31, 2024, the weighted average remaining life for identifiable intangible assets was 8.5 years. Aggregate amortization expense was $4.0 million and $4.1 million for the years ended December 31, 2024 and 2023, respectively. Patent rights, acquired technology and acquired licenses are amortized over a 15-year period. Assembled workforce is amortized over a five-year period. Estimated future amortization expense related to intangible assets as of December 31, 2024 is as follows (in thousands):
|  | Amount |
2025 |  | $ | 4,006 |
2026 |  |  | 4,006 |
2027 |  |  | 4,006 |
2028 |  |  | 4,006 |
2029 |  |  | 4,006 |
Thereafter |  |  | 12,423 |
Total |  | $ | 32,453 |

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- Definition The entire disclosure for goodwill and intangible assets. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/350-30/tableOfContent Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 350 -SubTopic 20 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/350-20/tableOfContent + Details
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